Year % of female population 1960 9.85379206119567 1961 9.91117648461667 1962 9.96819204351682 1963 10.0163691182601 1964 10.0438000876364 1965 10.0531340655848 1966 10.0394896890833 1967 10.0109035507969 1968 9.96326344563913 1969 9.90487738353925 1970 9.85329790275008 1971 9.82804198527754 1972 9.87883592815963 1973 9.98194191015931 1974 10.0877409358692 1975 10.2303607542336 1976 10.4077255822831 1977 10.5793818802855 1978 10.7612070406268 1979 10.9571325401996 1980 11.1393946571192 1981 11.2933796256177 1982 11.429803779396 1983 11.5613493611273 1984 11.7046997622988 1985 11.8737774258506 1986 12.0730993132539 1987 12.2593145327264 1988 12.4137204692063 1989 12.5406397715008 1990 12.6737896990704 1991 12.8406328709314 1992 13.0075598552011 1993 13.1665587004425 1994 13.3012664701983 1995 13.4084760717027 1996 13.5029363077914 1997 13.5810030234811 1998 13.6496813762768 1999 13.7015215339524 2000 13.7506814760738 2001 13.8178730853265 2002 13.891267625042 2003 13.9731079669203 2004 14.0624001120116 2005 14.1499963643469 2006 14.2293791655913 2007 14.295584859772 2008 14.3591822220291 2009 14.4690687031433 2010 14.6485039383893 2011 14.8792126544221 2012 15.1290820049921 2013 15.3679011525141 2014 15.5954737396333 2015 15.822274489618 2016 16.0488543705889 2017 16.2799012587341 2018 16.5313569862844 2019 16.8017281864318 2020 17.1132878229239 2021 17.460783314432 2022 17.8093773037246 2023 18.1615529714607